So basically, this happened because of a lack of attention and patience. First I forgot to close my trims before launching. And secondly a guy where trying to inflate his wing in front of me for a long time and I didn't want to wait anymore so I ran around him which make me loose a lot of speed for a proper launch.
But everything was fine, I didn't get harmed and my wing nether. Luckily I was able to climb down alone and launch back strait away.
Every mistake is a lesson